These cast sterling clip earrings are of excellent design and workmanship. They are set with cabochon aventurine quartz stones (sometimes called aventurine jade). The milky green stones are polished to a high gloss. The round setting is enhanced with raised silver knobs. The markings are a "RLL" trademark; the mark is on both earrings. There is no silver mark, but the earrings test sterling. Each earring measures 5/8" in diameter and 1/4" thick. The pair weighs 11.5 grams. The earrings are in excellent original condition. They are 30-60 years old.